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#!/usr/bin/python
# -*- coding: utf-8 -*-
""" Copyright 2005 - 2008 Gunnar Wrobel
2011 - Brian Dolbec
Distributed under the terms of the GNU General Public License v2
"""
from __future__ import unicode_literals
from __future__ import print_function
__version__ = "0.1"
import sys
from layman.constants import codes, INFO_LEVEL, WARN_LEVEL, NOTE_LEVEL, DEBUG_LEVEL, OFF
from layman.compatibility import encode
# py3.2
if sys.hexversion >= 0x30200f0:
from io import IOBase as BUILTIN_FILE_TYPE
else:
BUILTIN_FILE_TYPE=file
class MessageBase(object):
"""Base Message class helper functions and variables
"""
def __init__(self,
out = sys.stdout,
err = sys.stderr,
info_level = INFO_LEVEL,
warn_level = WARN_LEVEL,
note_level = NOTE_LEVEL,
col = True,
error_callback=None
):
# Where should the error output go? This can also be a file
if isinstance(err, BUILTIN_FILE_TYPE):
self.error_out = err
else:
raise Exception("MessageBase: input parameter 'err' must be of type: file")
# Where should the normal output go? This can also be a file
if isinstance(out, BUILTIN_FILE_TYPE):
self.std_out = out
else:
raise Exception("MessageBase: input parameter 'out' must be of type: file")
# The higher the level the more information you will get
self.warn_lev = warn_level
# The higher the level the more information you will get
self.info_lev = info_level
# The higher the level the more information you will get
self.note_lev = note_level
# Should the output be colored?
self.color_func = None
self.set_colorize(col)
self.debug_lev = OFF
# callback function that gets passed any error messages
# that have shown up.
self.error_callback = error_callback
self.block_callback = False
def _color (self, col, text):
return codes[col] + text + codes['reset']
def _no_color (self, col, text):
return text
def set_colorize(self, state):
if state:
self.color_func = self._color
else:
self.color_func = self._no_color
def set_info_level(self, info_level = INFO_LEVEL):
self.info_lev = info_level
def set_warn_level(self, warn_level = WARN_LEVEL):
self.warn_lev = warn_level
def set_note_level(self, note_level = NOTE_LEVEL):
self.note_lev = note_level
def set_debug_level(self, debugging_level = DEBUG_LEVEL):
self.debug_lev = debugging_level
def do_error_callback(self, error):
"""runs the error_callback function with the error
that occurred
"""
if self.error_callback is not None and not self.block_callback:
self.error_callback(error)
class Message(MessageBase):
"""Primary Message output methods
"""
#FIXME: Think about some simple doctests before you modify this class the
# next time.
def __init__(self,
out = sys.stdout,
err = sys.stderr,
info_level = INFO_LEVEL,
warn_level = WARN_LEVEL,
note_level = NOTE_LEVEL,
col = True,
error_callback = None
):
MessageBase.__init__(self, out, err, info_level, warn_level,
note_level, col, error_callback)
## Output Functions
def debug(self, info, level = OFF):
"""empty debug function, does nothing,
declared here for compatibility with DebugMessage
"""
info = encode(info)
if level > self.debug_lev:
return
for i in info.split('\n'):
print(self.color_func('yellow', 'DEBUG: ') + i, file=self.std_out)
def notice (self, note, level = NOTE_LEVEL):
if level > self.note_lev:
return
print(note, file=self.std_out)
def info (self, info, level = INFO_LEVEL):
info = encode(info)
if level > self.info_lev:
return
for i in info.split('\n'):
print(" %s %s" % (self.color_func('green', '*'),i), file=self.std_out)
def status (self, message, status, info = 'ignored'):
message = encode(message)
lines = message.split('\n')
if not len(lines):
return
for i in lines[0:-1]:
print(" %s %s" % (self.color_func('green', '*'),i), file=self.std_out)
i = lines[-1]
if len(i) > 58:
i = i[0:57]
if status == 1:
result = '[' + self.color_func('green', 'ok') + ']'
elif status == 0:
result = '[' + self.color_func('red', 'failed') + ']'
else:
result = '[' + self.color_func('yellow', info) + ']'
print(file=" %s %s %s %S" % (self.color_func('green', '*'), i,
('.' * (58 - len(i))), result))
def warn (self, warn, level = WARN_LEVEL):
warn = encode(warn)
if level > self.warn_lev:
return
for i in warn.split('\n'):
print(" %s %s" % (self.color_func('yellow', '*'),i), file=self.std_out)
def error (self, error, level = None):
error = encode(error)
for i in error.split('\n'):
# NOTE: Forced flushing ensures that stdout and stderr
# stay in nice order. This is a workaround for calls like
# "layman -L |& less".
self.std_out.flush()
self.error_out.flush()
print(" %s %s" % (self.color_func('red', '*'), i), file=self.std_out)
self.std_out.flush()
self.do_error_callback(error)
def die (self, error):
error = encode(error)
for i in error.split('\n'):
self.error(self.color_func('red', 'Fatal error: ') + i)
self.error(self.color_func('red', 'Fatal error(s) - aborting'))
sys.exit(1)
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